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UNIT 2
MODULE 2: ANALYTICAL METHODS AND SEPARATION TECHNIQUES (cont’d)
SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES
3. Gravimetric Methods of Analysis
Students should be able to:
3.1. explain the principles upon Limited to a discussion on
which gravimetric analyses precipitation and
are based; volatilisation methods.
3.2. describe the functions of Limited to suction flasks,
the various pieces of basic suction funnels, silica
equipment used in crucibles, sinter glass
gravimetric analyses; crucibles and ovens and
furnaces.
3.3. perform experiments based Limited to
on gravimetric experiments involving
determinations; volatilisation methods,
such as, moisture content
of soils; water of
crystallisation.
3.4. perform calculations based Use data from actual
on data obtained from experiments carried out
gravimetric analyses; and, or from the literature.
3.5. cite examples of the use of Examples include
gravimetric analysis in determination of SO2 in the
quality control. air, in wine or fruit drink;
determination of the
amount of elements such
as phosphorous in
fertilizers; the chloride ion
presence in water supply.
4. Spectroscopic Methods of Analysis
Students should be able to:
4.1. explain the nature of Calculations using the
electromagnetic radiation; equation:
E = hv = hc/λ are required.
CXC A11/U2/17 47
